Method for regulating transmit power and wireless routing device

• US 9,351,245 B2
• Filed: 06/20/2013
• Issued: 05/24/2016
• Est. Priority Date: 06/20/2012
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Ma, Tao
• Primary Examiner(s): Moore, Ian N
• Assistant Examiner(s): La, Phong
• Application Number:
  US13/922,569
• Publication Number:
  US 20130343253A1
• Time in Patent Office: 1,069 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04W 52/0206 in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: H04W 52/143 Downlink power control
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/28 using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
• CPC Class Codes: H04W 52/288 taking into account the usage mode, e.g. hands-free, data transmission, telephone
• CPC Class Codes: H04W 52/46 in multi hop networks, e.g. wireless relay networks
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Embodiments of the present invention disclose a method for regulating transmit power and a wireless routing device, which relate to the field of wireless communications technologies, and can adjust transmit power according to a current work category of a wireless routing device in a wireless local area network, thereby ensuring transmission strength of a radio wave or saving electrical energy, and improving user experience. The method in the present invention includes: determining, by a wireless routing device, a data type of to-be-transmitted data; when the data type of the to-be-transmitted data is uplink data, selecting, by the wireless routing device, first transmit power to send the to-be-transmitted data on a preset channel Channel; and when the data type of the to-be-transmitted data is downlink data, selecting, by the wireless routing device, second transmit power to send the to-be-transmitted data on the preset channel Channel.

Claims

1. A method for regulating transmit power, comprising:

determining, by a smart phone, a data type of to-be-transmitted data according to identification information in a data frame of the to-be-transmitted data, wherein the data type comprises uplink data or downlink data;

when the data type of the to-be-transmitted data is the uplink data, selecting, by the smart phone, first transmit power to send the to-be-transmitted data on a preset channel Channel, wherein the first transmit power is transmit power of a radio wave in a process that the smart phone serving as an STA sends data to an AP node; and

when the data type of the to-be-transmitted data is the downlink data, selecting, by the smart phone, second transmit power to send the to-be-transmitted data on the preset channel Channel, wherein the second transmit power is transmit power of a radio wave in a process that the smart phone serving as an AP sends data to an STA node;

wherein the determining, by the smart phone, the data type of the to-be-transmitted data comprises;

acquiring, by the smart phone, identification information of the to-be-transmitted data, wherein the identification information comprises a basic structure type of the to-be-transmitted data or a source address of the to-be-transmitted data; and

if the identification information is the basic structure type of the to-be-transmitted data, determining, by the smart phone and according to the basic structure type of the to-be-transmitted data, the data type of the to-be-transmitted data, wherein the basic structure type comprises a field used to indicate that the to-be-transmitted data is the uplink data or the downlink data; and

if the identification information is the source address of the to-be-transmitted data, determining, by the smart phone and according to the source address, a working mode of the smart phone, and determining, according to the working mode of the smart phone, the data type of the to-be-transmitted data, wherein the working mode comprises;

an STA mode or an AP mode, wherein

in the STA mode, the data type of the to-be-transmitted data is the uplink data; and

in the AP mode, the data type of the to-be-transmitted data is the downlink data.

2. The method for regulating transmit power according to claim 1, wherein when the data type of the to-be-transmitted data is the uplink data, and before the selecting, by the smart phone, the first transmit power to send the to-be-transmitted data on the preset channel Channel, the method further comprises:

acquiring, by the smart phone, path fading of a radio wave of a target AP node, wherein the target AP node comprises a wireless access point currently performing data interaction with the smart phone; and

generating, according to the path fading and preset receiving sensitivity, the first transmit power.

3. The method for regulating transmit power according to claim 2, comprising:

in a process of sending the uplink data to the target AP node, acquiring, by the smart phone, current path fading of a radio wave of the target AP node at specified intervals, and acquiring current transmit power according to newly acquired path fading and the preset receiving sensitivity; and

using the current transmit power as the first transmit power.

4. A smart phone, comprising:

a processor; and

a non-transitory storage medium accessible to the processor, the non-transitory storage medium configured to store instructions causing the to perform acts comprising;

determining a data type of to-be-transmitted data according to identification information in a data frame of the to-be-transmitted data, wherein the data type comprises uplink data or downlink data;

when the data type of the to-be-transmitted data is the uplink data, selecting first transmit power to send the to-be-transmitted data on a preset channel Channel, wherein the first transmit power is transmit power of a radio wave when the smart phone serving as an STA sends data to an AP node; and

when the data type of the to-be-transmitted data is the downlink data, selecting second transmit power to send the to-be-transmitted data on the preset channel Channel, wherein the second transmit power is transmit power of a radio wave when smart phone serving as an AP sends data to an STA node;

acquiring identification information of the to-be-transmitted data, wherein the identification information comprises a basic structure type of the to-be-transmitted data or a source address of the to-be-transmitted data;

if the identification information is the basic structure type of the to-be-transmitted data, determining, according to the basic structure type of the to-be-transmitted data, the data type of the to-be-transmitted data, wherein the basic structure type comprises a field used to indicate that the to-be-transmitted data is the uplink data or the downlink data; and

if the identification information is the source address of the to-be-transmitted data, determining, according to the source address, a working mode, and determine, according to the working mode, the data type of the to-be-transmitted data, wherein the working mode comprises;

an STA mode or an AP mode, wherein

in the STA mode, the data type of the to-be-transmitted data is the uplink data; and

in the AP mode, the data type of the to-be-transmitted data is the downlink data.

5. The smart phone according to claim 4, wherein the non-transitory storage medium configured to store instructions causing the processor to perform acts comprising:

acquiring path fading of a radio wave of a target AP node, wherein the target AP node comprises a wireless access point currently performing data interaction with the smart phone; and

generating, according to the path fading and preset receiving sensitivity, the first transmit power.

6. The smart phone according to claim 5, wherein the non-transitory storage medium configured to store instructions causing the processor to perform acts comprising:

when sending the uplink data to the target AP node, acquiring current path fading of a radio wave of the target AP node at specified intervals, and acquiring current transmit power according to newly acquired path fading and the preset receiving sensitivity; and

using the current transmit power as the first transmit power.